Estimation of Helmert Orthometric Heights Using Digital Barcode Levelling, Observed Gravity and Topographic Mass-Density Data Over Part of the Darling Scarp, Western Australia
The normal orthometric corrections used in the 1971 establishment of the Australian Height Datum (AHD) do not properly account for local variations in the Earth?s gravity field. Therefore, Helmert orthometric heights have been computed over a spirit-levelled height traverse over part of the Darling...
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| Format: | Journal Article |
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Institution of Surveyors, Australia
2001
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| Online Access: | http://hdl.handle.net/20.500.11937/43174 |